Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments

The objective of this study was to investigate the influence of hydrothermal treatment of walnut (Juglans regia) and caucasian elm (Zelkova Carpinifolia) wood species on their acoustic properties in radial and tangential directions. For this purpose, specimens were prepared with dimensions of 360 (L...

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Autores principales:	Mohammad Ghofrani, Hossein Hosseinkhani, Habib Rahimi dastjerdi, Saeid Khojasteh khosro, Parviz Amiri
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2014
Materias:	Hydrothermal treatment Acoustic properties Musical instruments free-free flexural vibration method walnut Caucasian Elm Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/13be6da609f5438cbf0873d616408c40
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id	oai:doaj.org-article:13be6da609f5438cbf0873d616408c40
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spelling	oai:doaj.org-article:13be6da609f5438cbf0873d616408c402021-12-02T07:20:16ZEffect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments1735-09132383-112X10.22092/ijwpr.2014.8648https://doaj.org/article/13be6da609f5438cbf0873d616408c402014-12-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_8648_f8491d753840a3125667de3fa4076a1b.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XThe objective of this study was to investigate the influence of hydrothermal treatment of walnut (Juglans regia) and caucasian elm (Zelkova Carpinifolia) wood species on their acoustic properties in radial and tangential directions. For this purpose, specimens were prepared with dimensions of 360 (L) ×20 (R) ×20 (T) mm. Heat treatments in water medium were performed at 150ºC for 5 hours. Acoustic properties of specimens (specific modulus of elasticity, damping, acoustical coefficient, acoustical conversion efficiency and wave velocity) measured by free flexural vibration on a free-free bar method. Properties of treated specimens compared with control specimens. Result showed that hydrothermal treatment improved all acoustic properties of specimens. Acoustic properties of radial and tangential surfaces of walnut wood did not show significant difference; while in caucasian elm significant differences obtained between radial and tangential surface properties. Generally, better acoustic properties achieved in tangential direction of heat-treated Caucasian elm species. So, it is recommended as a suitable specimen to be used in making the sound-boards of musical instruments such as Iranian Santour and Xylophones and also resonator boxes.Mohammad GhofraniHossein HosseinkhaniHabib Rahimi dastjerdiSaeid Khojasteh khosroParviz AmiriRegional Information Center for Science and Technology (RICeST)articleHydrothermal treatmentAcoustic propertiesMusical instrumentsfree-free flexural vibration methodwalnutCaucasian ElmForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 29, Iss 4, Pp 636-647 (2014)
institution	DOAJ
collection	DOAJ
language	FA
topic	Hydrothermal treatment Acoustic properties Musical instruments free-free flexural vibration method walnut Caucasian Elm Forestry SD1-669.5
spellingShingle	Hydrothermal treatment Acoustic properties Musical instruments free-free flexural vibration method walnut Caucasian Elm Forestry SD1-669.5 Mohammad Ghofrani Hossein Hosseinkhani Habib Rahimi dastjerdi Saeid Khojasteh khosro Parviz Amiri Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
description	The objective of this study was to investigate the influence of hydrothermal treatment of walnut (Juglans regia) and caucasian elm (Zelkova Carpinifolia) wood species on their acoustic properties in radial and tangential directions. For this purpose, specimens were prepared with dimensions of 360 (L) ×20 (R) ×20 (T) mm. Heat treatments in water medium were performed at 150ºC for 5 hours. Acoustic properties of specimens (specific modulus of elasticity, damping, acoustical coefficient, acoustical conversion efficiency and wave velocity) measured by free flexural vibration on a free-free bar method. Properties of treated specimens compared with control specimens. Result showed that hydrothermal treatment improved all acoustic properties of specimens. Acoustic properties of radial and tangential surfaces of walnut wood did not show significant difference; while in caucasian elm significant differences obtained between radial and tangential surface properties. Generally, better acoustic properties achieved in tangential direction of heat-treated Caucasian elm species. So, it is recommended as a suitable specimen to be used in making the sound-boards of musical instruments such as Iranian Santour and Xylophones and also resonator boxes.
format	article
author	Mohammad Ghofrani Hossein Hosseinkhani Habib Rahimi dastjerdi Saeid Khojasteh khosro Parviz Amiri
author_facet	Mohammad Ghofrani Hossein Hosseinkhani Habib Rahimi dastjerdi Saeid Khojasteh khosro Parviz Amiri
author_sort	Mohammad Ghofrani
title	Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
title_short	Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
title_full	Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
title_fullStr	Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
title_full_unstemmed	Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments
title_sort	effect of hydrothermal treatment on the acoustic properties of wood from walnut and elm species, utilizable in musical instruments
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2014
url	https://doaj.org/article/13be6da609f5438cbf0873d616408c40
work_keys_str_mv	AT mohammadghofrani effectofhydrothermaltreatmentontheacousticpropertiesofwoodfromwalnutandelmspeciesutilizableinmusicalinstruments AT hosseinhosseinkhani effectofhydrothermaltreatmentontheacousticpropertiesofwoodfromwalnutandelmspeciesutilizableinmusicalinstruments AT habibrahimidastjerdi effectofhydrothermaltreatmentontheacousticpropertiesofwoodfromwalnutandelmspeciesutilizableinmusicalinstruments AT saeidkhojastehkhosro effectofhydrothermaltreatmentontheacousticpropertiesofwoodfromwalnutandelmspeciesutilizableinmusicalinstruments AT parvizamiri effectofhydrothermaltreatmentontheacousticpropertiesofwoodfromwalnutandelmspeciesutilizableinmusicalinstruments
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Effect of hydrothermal treatment on the acoustic properties of wood from Walnut and Elm species, utilizable in musical instruments

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